I think you could look past those issues if he was also breaking down the opposing team's defense to get good looks for the rest of the team (and making Tatum and Brown's lives easier)
Couldn't care less whether he's ''breaking down the opposing team's defense''. Wouldn't ask him to do any of that. He's generating good looks for his teammates by spacing the floor.
I'm not even sure he's the guy you want to rely on running the offense through for the bench minutes.
Again, I wouldn't ask him to run the offense. I'd ask him to space the floor. Tatum runs the offense in the half court. We also have Smart and Schroder. Both of them are at their best when playing with the ball in their hands.
Regarding defense:
Obviously, this is a major issue. That said, Pritchard is a guard. It's relatively easy to hide undersized guards on defense. We've been doing this for years with Kemba and IT. Unlike Kemba, Pritchard wouldn't be taking shots away from the Jays cause he'd be playing mostly off the ball.
Nearly all teams have an off-ball shooter parked in the corner/lurking in the weak side. We can just hide Pritchard in the corner/the weak side. Not all positions are equally important on defense. If Pritchard were a Center, we would have been having a way different conversation. Can't hide Centers in the corners/the weak side for 2 reasons:
1. You need someone to protect the rim and grab rebounds.
2. Most bigs aren't mobile enough to play D on the perimeter.
Obviously, opposing teams would try to force switches in order to attack Pritchard. More often than not, we can at least try to hide him on a mediocre offensive player. Don't get me wrong, I'm not saying we should definitely start him. Just that I'd want us to give him extended minutes with the starters. Give it a try and see how it goes. The same goes for Nesmith. I reckon both of them would work wonders for our spacing.